Nut & Bolt thread checker was designed to make your job easier and improve efficiency, being a fast and simple way of verifying the thread of your bolts and nuts. Applicable to mechanical repairs, or common threads in plumbing, air and gas connections, etc.

Made of high-quality high-speed steel, this is a rust resistant material that will not bend or break, designed to withstand the test of time.

Easy to use: Each individual gauge features a male threaded stud on one end and a female threaded hole on the other. Conveniently assembled onto a wire loop, its the perfect portable solution.

INCH Nut & Bolt Thread Checker Size - Includes: 6-32, 6-40, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 1/2-13, 1/2-20, 9/16-12, 9/16-18, 5/8-11, 5/8-18, 3/4-10, 3/4-16,1-8, 1/12.

Metric Nut & Bolt Thread Checker Size - Includes: M3x0.5, M4x0.7, M5x0.8, M6x1.0, M7x1.0, M8x1.0, M8x1.25, M10x1.0, M10x1.25, M10x1.5, M12x1.25, M12x1.5, M12x1.75, M14x1.5, M14x2.2, M16x1.5, M16x2.0, M20x1.5, M20x2.5, M24x2.0, M24x3.0.